Learning iterative reconstruction for high resolution photoacoustic tomography

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• Andreas Hauptmann (University College London)
• Tuesday 31 October 2017, 17:20-18:10
• Seminar Room 1, Newton Institute.

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VMVW02 - Generative models, parameter learning and sparsity

Recent advances in deep learning for tomographic reconstructions have shown great potential to create accurate and high quality images with a considerable speed-up. In this work we present a deep neural network that is specifically designed to provide high resolution 3D images from restricted photoacoustic measurements. The network is designed to represent an iterative scheme and incorporates gradient information of the data fit to compensate for limited view artefacts. Due to the high complexity of the photoacoustic forward operator, we separate training and computation of the gradient information. A suitable prior for the desired image structures is learned as part of the training. The resulting network is trained and tested on a set of segmented vessels from lung CT scans and then applied to in-vivo photoacoustic measurement data.

This talk is part of the Isaac Newton Institute Seminar Series series.

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